Just say that the government will control every single device that's controlled to the Internet and they can add government viruses that you can't remove and they can remotely control all of your devices and brick them if you try to send anything that the government doesn't like.

That's not even an exaggeration, once they enforce OS-level age verification via remote attestation they don't even have to pass a law to do this, they can send a secret order to Big Tech to do this.